Library to abstract OpenTelemetry trace data access

[dovydas-an]

Develop alpha version of (Python) library abstracting OpenTelemetry trace data access with implementations for OpenSearch with ss4o schema.

[tilowiklundSensmetry]

• A new python library called opentelemetry-betterproto, analogous to opentelemetry-proto but using the python-betterproto package

• Based on the above a library for processing and converting between different OpenTelemetry representations (currently OTLP JSON, OTLP protobuf, and the format returned from OpenSearch when using the SS4O schema) has been created.

[tilowiklundSensmetry]

Various clean-ups and improvements. Added a CLI entry-point for easily converting between the formats from the command line (useful for creating test-cases and for debugging). First mock implementation of the access API is about to be merged.

[tilowiklundSensmetry]

The library itself is reasonable functional, finalising work on first version of the OpenSearch proxy (meaning abstracting the actual data fetching from OpenSearch).

[tilowiklundSensmetry]

Functional versions of core libraries have been developed. Primarily https://github.com/EOEPCA/python-opentelemetry-access and its dependency https://github.com/EOEPCA/opentelemetry-betterproto (which is mostly generated from protobuf spec).

The former contains a REST API endpoint and a (for now rudimentary) CLI. The REST interface is used by the prototype web UI (also released this quarter).